JPS55147638A - Magnetic toner - Google Patents

Magnetic toner

Info

Publication number
JPS55147638A
JPS55147638A JP5653479A JP5653479A JPS55147638A JP S55147638 A JPS55147638 A JP S55147638A JP 5653479 A JP5653479 A JP 5653479A JP 5653479 A JP5653479 A JP 5653479A JP S55147638 A JPS55147638 A JP S55147638A
Authority
JP
Japan
Prior art keywords
blended
binder
polymerization method
emulsion polymerization
type resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5653479A
Other languages
Japanese (ja)
Other versions
JPS6038701B2 (en
Inventor
Masashi Kiuchi
Yoshio Takasu
Hiroshi Fukumoto
Taku Hino
Masaki Uchiyama
Yasuo Mihashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP54056534A priority Critical patent/JPS6038701B2/en
Publication of JPS55147638A publication Critical patent/JPS55147638A/en
Publication of JPS6038701B2 publication Critical patent/JPS6038701B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE: To obtain magnetic toner having high fixability and superior offset resistance and suitable for heat roller fixing by using crosslinked styrene type resin obtd. by an emulsion polymerization method as a binder for magnetic powder.
CONSTITUTION: Styrene (deriv.), an acrylic monomer, etc. are copolymerized in the presence of a crosslinking agent such as divinylbenzene by an emulsion polymerization method to obtain crosslinked styrene type resin. This resin is used as a binder and blended with a magnetic material such as magnetite, hematite or ferrite with an average grain size of about 0.1W5μ in an amount of about 1W60, preferably 5W40wt% of the total amount of the resulting toner. As a coloring substance known carbon black, nigrosine or the like is blended.
COPYRIGHT: (C)1980,JPO&Japio
JP54056534A 1979-05-08 1979-05-08 magnetic toner Expired JPS6038701B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54056534A JPS6038701B2 (en) 1979-05-08 1979-05-08 magnetic toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54056534A JPS6038701B2 (en) 1979-05-08 1979-05-08 magnetic toner

Publications (2)

Publication Number Publication Date
JPS55147638A true JPS55147638A (en) 1980-11-17
JPS6038701B2 JPS6038701B2 (en) 1985-09-02

Family

ID=13029751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54056534A Expired JPS6038701B2 (en) 1979-05-08 1979-05-08 magnetic toner

Country Status (1)

Country Link
JP (1) JPS6038701B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57149310A (en) * 1981-03-13 1982-09-14 Japan Synthetic Rubber Co Ltd Production of resin
JPS57150855A (en) * 1981-03-13 1982-09-17 Konishiroku Photo Ind Co Ltd Toner for developing electrostatic charge image
JPS58100859A (en) * 1981-12-12 1983-06-15 Nippon Carbide Ind Co Ltd Toner for developing electrostatic charge image
JPS6272727A (en) * 1985-09-26 1987-04-03 Konishiroku Photo Ind Co Ltd Production of fine resin particle
EP0945766A2 (en) * 1998-03-26 1999-09-29 Toda Kogyo Corp. Black non-magnetic composite particles for black toner and black toner using the same
EP1076266A1 (en) * 1999-08-11 2001-02-14 Toda Kogyo Corporation Black toner
US6420030B1 (en) 1997-10-31 2002-07-16 Toda Kogyo Corporation Black iron-based composite particles, process for producing the same, paint and rubber or resin composition containing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020729A (en) * 1973-06-22 1975-03-05
JPS5123354A (en) * 1974-08-20 1976-02-24 Silver Seiko AMIKI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020729A (en) * 1973-06-22 1975-03-05
JPS5123354A (en) * 1974-08-20 1976-02-24 Silver Seiko AMIKI

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57149310A (en) * 1981-03-13 1982-09-14 Japan Synthetic Rubber Co Ltd Production of resin
JPS57150855A (en) * 1981-03-13 1982-09-17 Konishiroku Photo Ind Co Ltd Toner for developing electrostatic charge image
JPH0113099B2 (en) * 1981-03-13 1989-03-03 Konika Kk
JPH0370223B2 (en) * 1981-03-13 1991-11-06 Nippon Gosei Gomu Kk
JPS58100859A (en) * 1981-12-12 1983-06-15 Nippon Carbide Ind Co Ltd Toner for developing electrostatic charge image
JPH0241747B2 (en) * 1981-12-12 1990-09-19
JPS6272727A (en) * 1985-09-26 1987-04-03 Konishiroku Photo Ind Co Ltd Production of fine resin particle
US6420030B1 (en) 1997-10-31 2002-07-16 Toda Kogyo Corporation Black iron-based composite particles, process for producing the same, paint and rubber or resin composition containing the same
EP0945766A2 (en) * 1998-03-26 1999-09-29 Toda Kogyo Corp. Black non-magnetic composite particles for black toner and black toner using the same
EP0945766A3 (en) * 1998-03-26 2000-02-23 Toda Kogyo Corp. Black non-magnetic composite particles for black toner and black toner using the same
EP1076266A1 (en) * 1999-08-11 2001-02-14 Toda Kogyo Corporation Black toner

Also Published As

Publication number Publication date
JPS6038701B2 (en) 1985-09-02

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